Invention Grant
US09338805B2 Method and apparatus for standby with a dual-standby modem and establishing single connection for one subscriber identity card
有权
用于备用双待机调制解调器的方法和设备，并为一个用户识别卡建立单一连接
- Patent Title: Method and apparatus for standby with a dual-standby modem and establishing single connection for one subscriber identity card
- Patent Title (中): 用于备用双待机调制解调器的方法和设备，并为一个用户识别卡建立单一连接
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Application No.: US14078802Application Date: 2013-11-13
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Publication No.: US09338805B2Publication Date: 2016-05-10
- Inventor: Chao-Hsun Cheng
- Applicant: MEDIATEK, INC.
- Applicant Address: TW Hsin-Chu
- Assignee: MEDIATEK, INC.
- Current Assignee: MEDIATEK, INC.
- Current Assignee Address: TW Hsin-Chu
- Agency: Imperium Patent Works
- Agent Zheng Jin
- Main IPC: H04W76/02
- IPC: H04W76/02 ; H04W72/04 ; H04W88/06 ; H04W84/12
Abstract:
A method of PS path selection is provided. A single SIM card with dual standby feature UE is equipped with a first modem operated in a first RAT for both PS and CS services, and a second modem operated in a second RAT for PS only service. The UE camps on a cell using the first modem in a mobile communication network. The UE attaches to the network for PS service using the second modem. The UE also selects the second modem to form a PS path for routing PS data via the second modem. The UE then triggers CS service via the first modem. The UE switches the PS path from the second modem to the first modem upon triggering the CS service if the first modem allows simultaneous PS and CS service. After the CS service is terminated, the UE optionally triggers the second modem recovery mechanism.
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